Base mod, simple implementation of code, load and save markers, depending on world id.
Commands:
.savewaymarker [name] [color] - add marker at our player position to ui screen;
.savewaymarkerposition [name] [color] [x] [y] [z] - add marker at x y z position to ui screen;
.delwaymarker [name] - delete marker from ui screen;
.statewaymarker [name] [true/false] - enable(true) disable(false) marker state;
.setcolorwaymarker [name] [color] - set color our ui marker;
.colorswaymarker - list of all colors;
.listwaymarker - list of all markers

Marker colors:
Default
Red
Green
White
Purple
Yellow
Blue

Mod save markers to  waymarker.json, ModConfig in our AppData path.

 OLD MARKERS 1.0.0 NOT SUPPORTED